Half to lester a



(Model.)

- vG. W. HOVIS.

ADJUSTABLE 13133611 BOARD APOR SQUARYES. No. 260,755. l i Y 'Patented Ju1y 11,1882.

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UNITED STATES PATENT FFICE lll ONE-

HALF TO LESTER A. HOVIS, OF SAME PLACE.

SPECIFICATION forming' part of Letters Patent No. 260,755, dated July 11, 1882.

Application nien August 13,1881. (Model.) l

To all whom it may concern:

Be it known that I, CHARLES W. Hovrs, of Glintonville, in the'county of Venango and State of Pennsylvania, have invented certain new and useful Improvements in Gage and Bevel Attachments to Squares, of which the following is a specification.

In the drawings hereto annexed, Figure 1 is a plan view of the slotted bar or rule. Fig. 2 is a similar view of my invention complete. Fig. 3 is an end view of the sliding collar or clasp. Fig. 4 is a perspective view of the securing-screw. Figs. 5 and 6 are plan views of the lengthening-strips. Fig. 7 is a perspective view of a portion of the sliding collar. Fig. 8 is an end view of the upper portion of the sliding collar. Fig. 9 is an end view of the lower portion of the sliding collar, and Fig. 10 is a detail view.

Corresponding parts in the several figures are denoted by the same letters of reference.

This invention relates to gage and bevel attachments to carpenters squares, and has for its object to promote the facility with which the workman is enabled to obtain the length and end bevel of rafters, braces, and the like; and to this end it consists in certain improvements in the construction and operation of the same, substantially as will be hereinafter more fully described, and particularly pointed out in the claim.

Referring by letter to the drawings, A' denotes a square of ordinary construction, on one arm of which is adapted to slide a collar, B. This sliding collar B is composed of three parts or pieces, the upper main part of which, H, consists of the plate a', having a screwthreaded perforation for the set-screw J and vertical ends a', continued out to form horizontal dan ges u2 at each end. 'K designates a plate comprising the bottom portion of the sliding collar, having at one end a small projection, I. The plate K is riveted, as shown, to the iianges of part H, and has riveted to its under side, at the end having vthe projection I, the hanger or hinge-plate V, having a pivot or hinge-bolt, o, the free end of which is secured to the projection I on plate K.

B is a small adjustable bar or rule extended at one end to form a projecting arm, b, by

erated to secure the small rule B to the desired point on the square.

Z 'Z' designate pieces of rule, which may be of any length desired, designed to be bolted on the ends of the square to lengthen the same.

For this purpose the pieces Z Z are provided with shoulders O near their end, which abut against the end of the square, and with a perforation, w, corresponding with a perforation, w', in the ends of the square. Through these perforations the bolts are passed, and the lengthening attachments securely fastened to the square.`

From the foregoing description, taken in connection with the drawings hereto annexed, the operation and advantages of my invention will be readily understood. The collar B', to which is hinged the end of the rule B, embraces and slides on an arm of the square, and maybe secured at any point thereon by operating the set-screw J. The other end of the rule B is adjustably secured to the square by means ofthe screw-piece A workingin the longitudinal slot in the rule B. Y

My invention is simple, convenient, and efficient for thepurpose for which it is designed, and it is inexpensive and durable.

I am aware that it is not new to provide 'a square with a sliding clasp to which is secured a longitudinally-slotted bar or rule, such construction being shown in'pate'nts to H. Whipple, No. 14,329, to G. Lamb, No. 194,605, and others; but my invention possesses numerous advantages and differences in construction and arrangement of partsY over the devices of its class heretofore in use, principal among which are the construction and arrangement of the sliding collar H, and method of securing the slotted bar B thereto by hanger V, by means of which construction greater efficiency and accuracy are obtained.

Having thus described my invention, I claim and desire to secure by Letters atent of the 5 United States- As an improvement in gage and bevel attachments to squares, the combination, with the square, ofthe collar B', adapted to embrace and slide on one arm thereof, and comprising 1o atop plate, a, provided with a set-screw, J, and

having vertical end pieces, a a', continued out- Wardly to form horizontal Bauges a a2, and the bottom plate,K, secured to the latter, and having hanger V, between which and the bottom plate the bar or rule B is pivoted or hinged, 15 all arranged and operating substantially as herein shown and specified.

CHARLES W. HOVIS.

Witnesses:

En. H. CONAN, A. D. WILLIAMS. 

